Heating unit



July 28, 1936. H. N. BARUCH ET Al. 2,048,676

' HEATING UNIT Filed Aug. 23, 19:54 3 sheets-sheet 1 l MMA/11 July 28,1936- H. N. BARUCH ET A1. v 2,048,676

HEATING UNIT Filedug. 23, 1934 3 sheets-,Sheet 2 July 28, 1936.

H. N. BARUCH El' AL HEATING UNIT Filed Aug. 23, 1954 Z5 "Inl si 7' j. MII Z5 3 Sheets-Sheet 3 v uwcvvho/m das moijy AND Qec 520360711/ Patented July Z8, 1936 UNITED STATES PATENT OFFICE HEATING UNIT Park, Va.

lApplication August 23, 1934, Serial No. 741,172

4 Claims.

This invention relates to heating units or furnaces and more particularly to liquid heating devices.

'I'he invention to be hereinafter described is an improvement over the heating unit described in our co-pending application Serial No. 728,998, led June 4, 1934.

An object of this invention is to provide a heating unit or furnace adapted for use with hot water or the like, and which is so constructed that it may be readily made out of sheet metal suitably secured together so as to form a jacketed furnace structure which may be used in places where running water is not available.

Another object of this invention is to provide a heater of this type which may -be used in any Aroom without insulation, the structure of the furnace itself being such that a considerable amount of heat will be radiated therefrom in addition to providing means for furnishing heat at points remote from the heater.

A further object of this invention is the provision of a heater having relatively few joints so as to eliminate corrosion and to thereby permit the construction of the heater at a relatively low cost.

A still further object of this invention is to provide a heater of this type which will give free circulation throughout the jacket.

A further object of this invention is the construction of a heater of this type which is so constructed that it may be readily converted to oil burning which heating medium will operate very economically with this type of heater.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views,

Figure 1 is a detail front elevation of a heating unit constructed according to an embodiment of this invention.

Figure 2 is a detail rear elevation of the heater.

Figure 3 is a sectional View taken on the line 3 3 of Fig. 1.

Figure 4 is a detail side elevation of the device.

Figure 5 is a vertical section taken on the line 5-5 of Fig. 1. p

Figure 6 is an enlarged vertical sectional view taken transversely of the grate and shaker structure.

Figure rI is a top plan View of the heater with the smoke chamber removed from the top thereof.

b Figure 8 is a top plan View of the smoke chamer. Figure 9 is a bottom plan view of the smoke chamber. Figure 10 is a fragmentary enlarged sectional view taken on the line Ill-IIJ of Fig. '7 and showing in detail the manner in which the innerand outer walls of the heater are secured together to prevent bulging or the formation of pockets. Referring now to the drawings, the numeral I designates generally the base or lower portion ,of a heating unit constructed according to an embodiment of this invention. The base member IU is of jacketed construction and comprises-an inner jacket or wall, generally designated as I I, `le

and an outer jacket or wall I2. The two Vjackets or walls, II and I2 are held in spaced relation to each other by means of a plurality of pins or spacer members I3 which may have their opposite ends upset or welded as at I4. construction is shown in the enlarged sectional View in Fig. 10.

The inner jacket or wall member II comprises side plates or members I5 disposed, in the present embodiment, in rearwardly convergent rela-.Y

tion. A rear plate or member I 'I is secured to the rear edges of the side plates I5, and a front plate or member I8 is secured to the front edges ofthe plates I5. A bottom plate I9 is secured to the lower edges ofthe sides I5.

The outer jacket or wall member I2 comprises side plates or members disposed in spaced parallel relation to theV inner side members I5 and held in such spaced relation by pins or spacer members I3. A rear wall or plate 2l is secured to the rear edges of the sides 20, and a front wall or plate 22 is secured to the front edges of the sides 20. Both the rear and front walls, 2| and 22, respectively, are suitably spaced from the inner rear and front walls I 'I and I8, respectivelyr-l by means of the spacer members I3. A bottom wall 23 is secured to the sides 20 and to the rear and front walls 2| and 22, respectively.

' As will be more particularly noted in Figure 5, the inner bottom member I9 is disposed on an angle to the horizontal, with the rear portion of This' this member I9 raised, that is, the member I9 is a relatively constricted outlet 24 in the top of thel connections may be made tothe f' of the dwelling.

base'll).Y Intake nipples25 are secured to therear Ywall member 2I adjacent the bottom thereof, and

outlet nipples26 are secured to the'upper portion of the rear wall member 2|. In theY construction of the heater Vatleast two intakeand two'outlet nipples are provided, although there may, of course, be more orjless nipples to which suitable The front wall `of the baseV I0 may bepro- V vided adjacent the bottom thereof With anopening 21, preferably extending from side to side of Y the 'heater theV purposeV for which will be hereinafter described. This .opening 21 provides means by which ashes may be removed from the interior ,of the furnace, and also provides means by which the grates may b e removed or inserted. A hinged Vdoor 28 closes the openingV 21 andV is provided Vadjacent the bottom thereof with a Y suitable number of draft openings 29. The pas- "sageof air: through Vthe openings 29 is controlled by meansof a Aslidable closure 30V mounted y.on

- guides`3| carried by the door 28. Y

Fuel, where coal, wood, or other relatively solid material is, used, may be fedY to theinterior ofthe base I0 through a'rfeed ,openingv 32 provided in the base I0 yabove the lower opening V21. Prefer- VYably a,v chute-33YV is secured in ,this opening V32V Yand extends outwardly of theouterjwall 22 on an upwardrinclination and isrclosed by aV feed door or closure 34.j Anropenin'g 35 is provided in theY door,34 and a slide vor closure 36V is mounted in this'opening.35 so'astolncontrol Vthe passage of .air through Vthe opening 35 'when the door 34 is closed, as when the fire'is'checked or it is desired to reduce the vdraftthroughlthe fuel. YThe Ydoor I 34may beA hinged on either its side or lower edge, Y being shown in the drawings as being hinged at itslo'we'r edge. Vasat. 31. Y n The combustion chamber 38 ofthe base I0kdischarges into a smokebox or jacketed member,

Y vgenerally designated as 38. This: smoke box or Y n upper heating member 38 is designed to receive water which is to be heatedv'for domestic purposes, so that theheated lgases passing out of the combustionfchamber 38 will in turn Vheat the waterY within the jacket of the member 38.

The smoke box or upper heating memberrcomprisesan inner jacket 39 disposed in spaced relation to an outer jacket 40. The inner jacket 39 comprises side walls YIII disposed in upward convergent relation,V afront wall 42 having a substantialy verticaleupper portion and a downwardly and forwardly inclined lower portion 43, the bottom edge of Vwhich `meets the upper edge ofjthe f front wall member I8. g A rear YWal1`44 having a forwardly extending bottom 'portion V45 and a vertical portion 46, is secured to the sides 4I.*

1 Ihe outer jacket 4|) comprises outerv side walls 41 Ydisposed in spacedV relation Vto the inner side "zwalls`4l, a front wall 48,'and a rear wall Y49 provided ,atV the'lower portion thereof with Va.V forwardly extending bottom Wall member'. 50 'convn'ectingwithV the Vlower ed'gefof the inner wall Vmember 46. Inlet nipples 5I are provided in each 'side wall 41 and an outlet nipple 52 is provided adjacent the top of thek rear wall 49V so .that suit- Yable connections may be 'maderto the'rwa'ter system Vof the 'dwelling'. If desired, however, as

shown Ain dotted lines in Fig. 5,1the -lowerinlet 'nipples 5|"may 'be' connected to the outlet nipples 26 ofthe base I0 Vby meansof pipe connections '53, so that inY this caseV the smoke box or chamber 38 willY act as a'superheater for the heating Vsystem water and'will also increase the quantity of water which is beingA heated for the system.

` I'he smoke box or chamber 38 is fastened to the top of the base member I0 by providing outstandingrlugs or ears 54 onY the bottom of the member 38 which overlie lugs or ears 55 carried by the'bottom I0, and fastening devices, such as -bolts or rivets 5B pass through theselugs 54 and Y 55 and hold the two portions of the furnace xedly together.

Ving 21, and this grate member 59 is preferably Vheld in horizontal position on angle bars oroutstandingrlugs 60 secured to theinner sides I5.

A front or vertical grate member VIiI iscarri'ed by the grate member 59, this latter member being preferably Vdisposed spaced downwardly fromthe'v `upper edge of the opening 21, andthe vertical Vgrate'member 6I substantially covering the opensuch as coal, wood, peat, or Y ing betweenrthe gratemember 59Vand'the upper edge of the opening 21. Y

In order to Shakedown therashes resting upon the grate member 59 we have provided a. shake Y structure rincluding angularly related barsj62 which are disposed onV the upper side of the grate member-59. A shaft 63 is secured Ato the central portion of the bars 62 andgextendsv downwardly through a bearing64 provided in the grate member 59 at substantially the central portion thereof.

A shaker'handle 65 has one end securedV to the lower end of the'shaft 63, and the other end projects horizontally out through, the lower door 28, projecting through anelongated opening 66 in thedoor'28. "A plate 61 moves with'the'handle Y 65 Vand closes the slotl 66V in any position of the handle65. Vi f A damper68 isrockably mounted on a shaft 89 extending through the upperV portionjof the upper heating member 38 and regulates the passage of smokeand heat out through the smoke box 38. j Y Y In the useand operation of the heating Vunit hereinbeforeV described, afterrthe connections are` made to the heating' system and toftheV domestic 'water supply system, the fuel Vmay Vbe passed through the feedropening 32. Dueto'the upward Vinclination of the inner bottom plate I9 ythe water will freely flow within the bottom sov that thisY bottomrchamber may act as a 'preheater for the Y incoming cool water, after which vthe water'passes upwardly between the sides and front ander-'rearY Y walls of thedevice. vrI'he Vcombustible 'gases'will pass upwardlyrfrom the combustion chamber 38a.

to the interior of the smoke box or superheater 38, at which point the water in Vthis'pmember 38 will be heated. Where the member 38 isY conrnected to" the base member IIJ, the hotwater passing out through. the outlet nipples 26 V.will

ow upwardly through the connecting Ypipes 53 r and into the'upper member 38, whereth'e water will be additionally Vheated and will then flow outthrough the outlet nipple or Vnipples 52.

If desired Vthe'upper heating member 138 may be taken off Vof the base member IU and inserted Yin the throat of a fireplace so as to be heated .by Y the re in the fireplaCe, andV in this position the heating member 38may be Vconnectedrto the,

heating system so as to act as an adjunct to the heating member l0, or the member 38 may be connected to the domestic water supply system.

It will be apparent from the foregoing that an exceedingly simple hot water heater has been provided, which by reason of its simple construction can be very cheaply constructed, and may be used in a room to be heated, or placed in the basement of the dwelling, at which latter point the outside of the heating unit is preferably covered with insulation to conserve the heat. Also by reason of the inclination of the bottom member i9 of the inner jacket l l, the heating unit may be placed on the same level as the level of the radiators and adequate circulation be provided without the use of pumps or other means to enforce circulation. Preferably the space between the inner and outer jackets of the heater is relatively small, so that there will only be a thin lm of water about the combustion chamber and through the bottom, thereby requiring a smaller amount of fuel to heat the water, which by reason of the thin wall of water will be heated to a relatively high degree by a small amount of fuel.

In view of the manner of mounting the fixed grate 59, where it is desired to convert the heater to an oil burner, the grate 59 may be merely lifted from the supporting members 6G.

The shaker handle 55 is preferably made in two parts, an inner part 65a and an outer part Se?) which telescope one another so that the outer part 55h may be removed when it is desired to open the door 323 to remove ashes or for other purposes.

The lower heating unit I ii may be used with or without the smoke jacket 38, and in like manner the smoke jacket may be used with or without the lower heating unit it, the smoke jacket being insertable in the throat of a fireplace if desired for the purpose of obtaining hot water for domestic purposes, or as an adjunct to the existing heating system wherein the main heater is positioned in the basement of the dwelling.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modications being restricted only by the scope of the annexed claims.

What is claimed is:

1. A heater as set forth comprising a jacketed member constructed of sheet metal or cast iron and having inner and outer walls spaced apart to provide free circulation therebetween, said member also having a flat jacketed bottom provided with an upwardly and rearwardly inclined inner bottom wall to facilitate circulation through the jacketed bottom, said inner bottom wall being inclined in an upward and rearward direction from the front to the rear thereof, the inner and outer walls of the bottom diverging from each other, the rear jacketed wall of said heater being inclined towards the front of the heater from its median line, said heater being open at the top, and a flue structure above said top having jacketed walls, and a damper within the flue structure.

2. Aheater as set forth comprising a base member comprising an inner jacket, an outer jacket, means for securing the jackets together in spaced apart relation to provide a relatively thin water chamber, said inner jacket having a bottom Wall upwardly inclined from the front to the end thereof to facilitate circulation, means for discharging fuel into the interior of the inner jacket, means for removing ashes from the lower portion of the inner jacket, and means for supporting fuel in upwardly spaced relation to the bottom of the inner jacket, the inner and outer walls of the bottom diverging from each other, the rear jacketed wall of said heater being inclined towards the front of the heater from its median line, said heater being open at the top, and a ue structure above said top having jacketed walls, and a damper within the flue structure.

3. A heater as set forth comprising a base member including an inner jacket,lan outer jacket, each of said jackets being constructed of relatively thin sheet material, means for securing the jackets together in spaced apart relation to provide a relatively thin uniform water chamber, said inner jacket having an upwardly inclined bottom extending from the front to the rear thereof to facilitate free circulation of water in the bottom, a fixed grate member, means whereby said grate member may be inserted or removed from the interior of the base member, means for supporting said grate member within the inner jacket, shaker members disposed above said grate member, means for mounting said shaker members on said grate member for swinging movement, operating means for said shaker members, and a jacketed member extending upwardly from the top of the base member and communicating with the interior thereof, said jacketed member forming with said base member a continuous vertical flue for the products of combustion, the upper part of the rear wall of said base member and the rear uppermost portion of the jacketed member forming an angle with each other.

4. A heater as set forth comprising a base memer including an inner jacket, an outer jacket,

eans for securing the jackets together in spaced apart relation to provide a relatively thin water chamber therebetween, said inner jacket having an upwardly inclined bottom extending from the front to the rear thereof to facilitate free circulation of water in the bottom from the front to the rear thereof, a fixed grate member, means whereby said grate member may be inserted or removed from the interior of the base member, means for supporting said grate member within the inner jacket, radially arranged shaker members disposed above said grate member, means for mounting said shaker members on said rgrate member for swinging movement, operating means for said shaker members, a jacketed member extending upwardly from the top of the base member and communicating with the upper portion thereof, inlet connections for said base member, outlet connections for said base member, inlet connections for said jacketed member, outlet connections for said jacketed member, and a damper carried by the upper portion of said jacketed mem- Y ber, said j acketed member forming with said base member a continuous vertical flue for the products of combustion, the upper part of the rear wall of said base member and the rear uppermost portion of the jacketed member forming an angle with each other.

I-IARTWIG N. BARUCH.

OTIS T. AMORY. Y

OBED A. BLOXOM. 

